The more expanded version of that post goes something like this --
Acts 21
20 And when they heard it they began glorifying God; and they said to him, You see, brother, how many thousands there are among the Jews of those who have believed, and they are all zealous for the Law; 21 and they have been told about you, that you are teaching all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children nor to walk according to the customs.
(Many here would argue - "yeah... that is EXACTLY what Paul was doing!" - Paul goes out of his way to disprove it.
22 What, then, is to be done? They will certainly hear that you have come.
23 Therefore do this that we tell you. We have four men who are under a vow;
24 take them and purify yourself along with them, and pay their expenses so that they may shave their heads; and all will know that there is nothing to the things which they have been told about you, but that you yourself also walk orderly, keeping the Law.
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Acts 24
10 Then Paul, after the governor had nodded to him to speak, answered: Inasmuch as I know that you have been for many years a judge of this nation, I do the more cheerfully answer for myself, 11 because you may ascertain that it is no more than twelve days since I went up to Jerusalem to worship. 12 And they neither found me in the temple disputing with anyone nor inciting the crowd, either in the synagogues or in the city. 13 Nor can they prove the things of which they now accuse me. 14But this I confess to you, that according to the Way which they call a sect, so I worship the God of my fathers, believing all things which are written in the Law and in the Prophets. 15 I have hope in God, which they themselves also accept, that there will be a resurrection of the dead, both of the just and the unjust. 16 This being so, I myself always strive to have a conscience without offense toward God and men.
17 Now after many years I came to bring alms and offerings to my nation, 18in the midst of which some Jews from Asia found me purified in the temple, neither with a mob nor with tumult. 19 They ought to have been here before you to object if they had anything against me. 20 Or else let those who are here themselves say if they found any wrongdoing in me while I stood before the council, 21unless it is for this one statement which I cried out, standing among them, Concerning the resurrection of the dead I am being judged by you this day.
Acts 25
7 When he had come, the Jews who had come down from Jerusalem stood about and laid many serious complaints against Paul, which they could not prove, 8 while he answered for himself, Neither against the law of the Jews, nor against the temple, nor against Caesar have I offended in anything at all.
Acts 26
according to the strictest sect of our religion I lived a Pharisee. 6 And now I stand and am judged for the hope of the promise made by God to our fathers. 7To this promise our twelve tribes, earnestly serving God night and day, hope to attain. For this hopes sake, King Agrippa, I am accused by the Jews. 8 Why should it be thought incredible by you that God raises the dead? ...
Paul Recounts His Conversion
12 While thus occupied, as I journeyed to Damascus with authority and commission from the chief priests, 13 at midday, O king, along the road I saw a light from heaven, brighter than the sun, shining around me and those who journeyed with me. 14 And when we all had fallen to the ground, I heard a voice speaking ... 17 I will deliver you from the Jewish people, as well as from the Gentiles, to whom I now send you, 18 to open their eyes, in order to turn them from darkness to light, and from the power of Satan to God, that they may receive forgiveness of sins and an inheritance among those who are sanctified by faith in Me.
Pauls Post-Conversion Life
19 Therefore, King Agrippa, I was not disobedient to the heavenly vision, 20 but declared first to those in Damascus and in Jerusalem, and throughout all the region of Judea, and then to the Gentiles, that they should repent, turn to God, and do works befitting repentance. 21 For these reasons the Jews seized me in the temple and tried to kill me. 22 Therefore, having obtained help from God, to this day I stand, witnessing both to small and great, saying no other things than those which the prophets and Moses said would come 23 that the Christ would suffer, that He would be the first to rise from the dead, and would proclaim light to the Jewish people and to the Gentiles.
Acts 28
17 And it came to pass after three days that Paul called the leaders of the Jews together. So when they had come together, he said to them: Men and brethren, though I have done nothing against our people or the customs of our fathers, yet I was delivered as a prisoner from Jerusalem into the hands of the Romans, 18 who, when they had examined me, wanted to let me go, because there was no cause for putting me to death. 19 But when the Jews spoke against it, I was compelled to appeal to Caesar, not that I had anything of which to accuse my nation. 20 For this reason therefore I have called for you, to see you and speak with you, because for the hope of Israel I am bound with this chain.
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23 So when they had appointed him a day, many came to him at his lodging, to whom he explained and solemnly testified of the kingdom of God, persuading them concerning Jesus from both the Law of Moses and the Prophets, from morning till evening.